Device manual CR3105/CR3106
24
8 Operating modes and programming
8.1 Preliminary notes
When the device has been set up successfully with the CANremote_Configurator
it can be operated without an additional application program� This is, however, not
useful because important functionalities, e�g� GPS mapping, real-time access or
file transfer cannot be used without the indicated GPRS services (→ 3.2 Products
of the ifm remote maintenance portfolio)�
The GSM services are available without restrictions and can be used by means of
the software libraries supplied by ifm�
For the ecomat
mobile
devices
"BasicController" and "PDM360NG" no
libraries are currently available�
8.2 Switch-on behaviour
After power on the device logs in to the GSM network�
If in the parameter settings the automatic server dial-up has been selected, the
device will log in to the ifm server� As an alternative, this selection can also be
made from the application�
8.3 CANremote process data objects (PDOs)
The CAN communication is based on the communication profile CiA-DS 301�
Since there is at present no device profile for CAN modems, a manufacturer-
specific communication protocol based on process data objects (PDOs) is used�
In the CANopen network the device always operates as a slave�
In the operating state "Operational", the device sends 3 process data objects
to the CAN network which can be received by all connected participants� This
enables their evaluation via a network variable or Layer 2 using the function block
CAN_x_RECEIVE�
